How to activate acronis startup recovery manager from bootable CD?

When I used the bootable cd created by Bootable Rescue Media Builder, it said following messages."The hard disk you have selected is not available when booting your pc and you will be able to restore images from Acronis Secure Zone located on this drive only from Windows".
I know I can activate it from windows. I want to know why I can't activate it from the bootable CD.

The bootable CD created by MediaBuilder.exe does not exist this problem. I made a multiboot cd by using the files on the BootableCD and encountered the problem mentioned above. I used isolinux to make the multiboot CD.

What does the "image file" mean? The image file of hardisk/partion?
I have not created the image file of the harddisk yet and installed acronis under the windows system either. What I did was using a bootable cd of true image server to boot the computer and try to install the startup recovery management. I found that the bootable cd made by MediaBuilder.exe can work, and the multiboot cd make by myself by using isolinux and files from true image bootable cd (kernel.dat and ramdisk.dat) does not work. I have copy the folder "Recovery Manager" to the root of multiboot cd too.

I have installed TI7 and use the mediabuilder.exe in it made the bootable Cd. I know there are unvisable file on the CD, for the size of the CD is much bigger than the total size of the folder/files on the CD. Maybe my bootcd does not work because of short of the hidden files on the original bootable cd made by mediabuilder.